Display Panel Power-Line Contact Layout to Reduce Resistance
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Solution Overview
Problem
Existing display panels face challenges in reducing power consumption and improving display quality due to high resistance in current flow, which is exacerbated by the bottleneck phenomenon in the connection of power lines.
Innovation Solution
The display panel design includes a structure with equal numbers of contact holes on both sides of conductive layers, allowing for efficient electrical connection through first and second contact holes, thereby reducing resistance and enhancing power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional power line connection structure is used, then manufacturing is simpler, but resistance increases due to bottleneck phenomenon
Solution Approach 1:
The power line connection is segmented into multiple contact holes (first contact holes and second contact holes) distributed at different positions (upper side and lower side) rather than using a single concentrated connection point. This segmentation reduces current density at any single point and eliminates the bottleneck effect, thereby reducing overall resistance while maintaining manufacturing feasibility through standardized patterning processes.
Solution Approach 2:
The connection structure transitions from a one-dimensional linear arrangement to a two-dimensional distributed arrangement by placing contact holes at both upper and lower sides of the insulating layer. This dimensional expansion provides multiple parallel current paths, reducing resistance without significantly increasing manufacturing complexity.
2Use of energy by moving object
If more contact holes are added to reduce resistance, then power consumption decreases, but manufacturing complexity increases
Solution Approach 1:
Contact holes are strategically positioned at specific locations (upper side and lower side of the insulating layer) where they can effectively connect power lines with different potentials. This localized placement optimizes the reduction of resistance while avoiding unnecessary contact holes that would complicate manufacturing, achieving a balance between energy efficiency and ease of fabrication.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design results in a display panel with reduced power consumption and heat generation, improving overall display performance and reliability.
Implementation Method 1
The first conductive layer is electrically connected to the second conductive layer via the at least one first contact hole and the at least one second contact hole
Data Source
AI summary
A display panel includes a base layer, a first conductive layer disposed on the base layer and including a power pattern, a second conductive layer disposed on the first conductive layer, and a first insulating layer disposed between the first conductive layer and the second conductive layer. The first insulating layer is provided with at least one first contact hole defined therethrough and disposed at an upper side in a plan view and at least one second contact hole defined therethrough and disposed at a lower side in a plan view, the first conductive layer is electrically connected to the second conductive layer via the at least one first contact hole and the at least one second contact hole, and a number of the at least one first contact hole is equal to a number of the at least one second contact hole.